Privacy Policy
Last updated: 3 August 2026
Clearwater is built so that it does not need to know who you are. There are no accounts, no sign-in, no email address and no advertising or analytics SDKs.
What is stored
- A random device identifier generated on your device the first time you open the app. It is not derived from any hardware identifier and cannot be linked back to you or to any other app.
- Your pool setup — type, volume, dimensions, surface, sanitiser, cover.
- Your water tests and the products you logged.
- An approximate location, only if you provide one. It is rounded to two decimal places (roughly 1 km) before it is stored, and it is used solely to fetch a weather forecast for your area.
- Colour values from your test-strip chart, if you use that feature. Only averaged colours are sent — photographs never leave your device.
- Notification settings, and — if you enable notifications — the push token issued by Apple.
What is not stored
No name, no email, no phone number, no precise GPS position, no contacts, no photos, no advertising identifier, no IP address log. Rate limiting uses your IP address in memory only and never writes it to disk.
Who else receives data
- Open-Meteo receives the rounded coordinates in order to return a weather forecast. Requests are cached and shared between users in the same ~11 km grid cell, so an individual request is not attributable to one user.
- Apple handles subscription purchases and push delivery. Clearwater verifies your subscription with Apple's servers and never sees your payment details.
Data is never sold, rented, or used for advertising or profiling.
Where data is stored
On a server operated by the developer in the European Union, in a database that is not shared with any third party.
How long
Until you delete it.
Deleting your data
Settings → “Delete all my data” removes your profile, pools, tests and history from the server immediately and permanently. Deleting the app alone does not delete server-side data, so use that button if you want everything gone.
Children
Clearwater is not directed at children and does not knowingly collect data from them.
Safety note
Clearwater calculates chemical doses from the values you enter. It is a guidance tool, not a substitute for the instructions on your product labels or for professional advice. Always follow the manufacturer's directions, never mix pool chemicals, and store them separately.
Contact
Questions or requests: [email protected]